The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 14, 2023
Filed:
Jul. 18, 2018
Applicant:
Daikin Industries, Ltd., Osaka, JP;
Inventors:
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F 8/10 (2021.01); B01D 35/06 (2006.01); F24F 11/46 (2018.01); F24F 8/192 (2021.01); F24F 140/60 (2018.01); F24F 140/50 (2018.01); H02M 1/15 (2006.01);
U.S. Cl.
CPC ...
B01D 35/06 (2013.01); F24F 8/10 (2021.01); F24F 8/192 (2021.01); F24F 11/46 (2018.01); F24F 2140/50 (2018.01); F24F 2140/60 (2018.01); H02M 1/15 (2013.01);
Abstract
A plurality of active filter devices () that each have an output connected to a harmonic-generating load device () and are capable of generating a compensating current for performing at least one of reduction of a harmonic current of the harmonic-generating load device () and improvement of the power factor of the fundamental wave are provided. The plurality of active filter devices () provide two or more types of capacities, and the number and combination of operating active filter devices among the active filter devices () change in accordance with the magnitude of the compensating current.